Home / 13,449.90-18,562.50-8,144.58

Finding the Fourth Proportional to 13,449.90, 18,562.50 and 8,144.58

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Solution

The fourth proportional to 13,449.90, 18,562.50 and 8,144.58 is: 11,240.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.90 : 18,562.50 = 8,144.58 : x
  2. Step 2: Convert to fraction form
    13,449.90/18,562.50 = 8,144.58/x
  3. Step 3: Cross multiply
    13,449.90x = 18,562.50 × 8,144.58
  4. Step 4: Simplify right side
    13,449.90x = 151,183,766.25
  5. Step 5: Solve for x
    x = 151,183,766.25/13,449.90
  6. Step 6: Final answer
    x = 11,240.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.